Zobrazeno 1 - 10
of 18
pro vyhledávání: '"K. V. R. Prasad"'
Autor:
K. V. R. Prasad, K. B. R. Varma
Publikováno v:
Active and Passive Electronic Components, Vol 18, Iss 3, Pp 137-144 (1995)
Ceramics obtained from quenching melts of prereacted polycrystalline Bi2V5.5 exhibit grain orientation (~ 55%). Microstructural studies carried out using scanning electron microscopy (SEM) on subsequently annealed ceramics show ferroelectric domains.
Externí odkaz:
https://doaj.org/article/f7f7e0eacb4f4af1babe522942d836a5
Publikováno v:
IOSR Journal of Mechanical and Civil Engineering. 2:12-23
Publikováno v:
Indian Journal of Nephrology, Vol 28, Iss 6, Pp 488-489 (2018)
Indian Journal of Nephrology
Indian Journal of Nephrology
Kidney transplantation from a hepatitis C virus (HCV)-positive donor to an HCV-negative recipient till recently has been a contraindication. In view of the excellent sustained virological response (SVR) rates with directly acting antiviral agents, HC
Publikováno v:
Physics in Medicine and Biology. 49:3603-3612
This study investigates the optical effects observed from uncoated and protein vaccine coated gold microparticles while imaging with two-photon excitation in the Mie scattering regime. When observed with time correlated single photon counting fluores
Autor:
K. V. R. Prasad, Kbr Varma
Publikováno v:
Journal of Materials Research. 11:2288-2292
Bi2Nbx V1−xO5.5 ceramics with x ranging from 0.01 to 0.5 have been prepared. The crystal system transforms from an orthorhombic to tetragonal at x 3= 0.1 and it persists until x = 0.5. Scanning electron microscopic (SEM) investigations carried out
Autor:
Kbr Varma, K. V. R. Prasad
Publikováno v:
Ferroelectrics. 158:205-210
Single crystals of $Bi_2Ge_xV_{1-x}O_{5.5-x/2}$, with various concentrations of x, have been grown by slowly cooling the melts of $Bi_2O_3, V_2O_5$ and $GeO_2$ in appropriate ratios. Single crystal X-ray diffraction studies confirm their single cryst
Publikováno v:
Bulletin of Materials Science. 17:299-306
Fine powders of orthorhombic bismuth vanadate (Bi2 VO5·5) have been synthesized by coprecipitation method. Powder X-ray diffraction and electron microscopic techniques have been used to characterize these samples. The formation of the monophasic Bi2
Publikováno v:
Journal of Materials Science. 29:2691-2696
Dielectric properties and microstructural characteristics of ferroelectric bismuth vanadate (Bi2VO5.5) ceramics exhibiting grain sizes of 7, 10, 20 and 25 μm have been studied. Microstructural studies indicate the presence of ferroelectric 90° doma
Publikováno v:
Ferroelectrics. 152:61-66
c-axis oriented thin films of Bi2VO5.5 (BVO), an n=1 member of the Aurivillius family, have been grown on SrTiO3(STO) by pulsed laser deposition. Metallic LaNiO3(LNO) films have been grown on STO and SiO2/Si(100) substrates; c-axis oriented BVO have
Autor:
Kbr Varma, K. V. R. Prasad
Publikováno v:
Journal of Materials Science Letters. 13:215-218
Experimental evidence exists that ferroelectric crys- tals consist of many domains [1]. This was proved conclusively for $BaTiO_3$ by investigating its domain structure in detail using a polarizing microscope [2, 3]. In this letter we report the doma